@misc{indiciae06465fec2436,
  title = {Index of the National Atlas of the United States of America (1970)},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1978},
  doi = {10.3133/ofr78604},
  url = {https://pubs.usgs.gov/publication/ofr78604},
  note = {Source identifier: ofr78604}
}